Then there's no ought to use whom in the least (and also the great the greater part of people don't). Are you interested in how people used to do it? Use 'whom whenever it's a immediate or indirect object (like after a preposition like 'to'). Stack Exchange network is https://financefeeds.com/zeus-marking-his-territory-announcing-an-ip-collaboration-with-original-zeus-artist-and-trademark-holder/